NOTE: You can unlock the access to the content by achieving at least 10 out of 11 Steam achievements in Transparent Black without a necessity to buy this DLC.
That's why this DLC doesn't have any achievement set.This downloadable content provides some characters behind the scenes with a chance to step onto stage, and some new features of course. It also explains the immediate cause of the event in Transparent Black, and it reveals a possible future, although the producers are not quite sure if the last sentence is true.